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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryIndustryMetal IndustryChurBMK Guss AG
BMK Guss AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

BMK Guss AG is a foundry producing cast components for construction and sewer applications as well as for the machinery industry. Services include machine casting, construction and sewer castings, pattern and tool making, and molding processes such as wet-sand, vacuum (V‑process), croning and 3D printing; materials include EN‑GJL (grey cast iron) and EN‑GJS (ductile iron).

AI-generated
Offering

Products & services

Industry:Metal Industry
✓ Offered4
Machine casting
Custom-made cast parts made of cast iron, from individual parts to batch sizes of 2000 units, with unit weights from 200 g to 200 kg.
Construction and drainage casting
Construction casting products for building and drainage, selectable according to requirements via the product filter.
Foundry pattern making / prototype tools
In-house pattern making and tool making for cast parts, based on 3D data, 2D drawings, used patterns or existing cast parts.
Foundry processes
Wet sand, vacuum and Croning processes, as well as 3D printing, for the production of cast parts and moulds.
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4.0/5

BMK Guss AG

Trust & reputation

ranQ Trust Score of BMK Guss AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

BMK Guss AG scores 56.5 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.58.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.35.310%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.78.08%
BMK Guss AG scores 92.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.82.07%
BMK Guss AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
BMK Guss AG scores 20.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BMK Guss AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.7 out of 5 stars from 3 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
3.7
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle3.73
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Comparisons

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Location

Pulvermühlestrasse 56
7000 Chur
Opening hours
Mon
07:00 - 11:45, 13:30 - 16:45
Tue
07:00 - 11:45, 13:30 - 16:45
Wed
07:00 - 11:45, 13:30 - 16:45
Thu
07:00 - 11:45, 13:30 - 16:45
Fri
07:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.349.173
Founded
1953 · 73 years
Last commercial register change
June 27, 2017
Employees
21 to 50
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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